jellybean1717
jellybean1717 jellybean1717
  • 13-10-2018
  • Mathematics
contestada

Point O is the center of this circle, what is mBCA?

A) 56
B) 62
C) 72
D) 76

Point O is the center of this circle what is mBCA A 56 B 62 C 72 D 76 class=

Respuesta :

skyeblu7 skyeblu7
  • 13-10-2018
answer: B.) 62

sum of interior angles of quadrilateral = 360

lines DB and DA are tangent to the circle, so they're at a right angle to the lines OB and OA respectively. so to find mBOA = 360 - 56 - 90 - 90
so mBOA = 124

mBCA = (1/2)mBOA
mBCA = (1/2)(124)
mBCA = 62°
Answer Link

Otras preguntas

Identify two fractions equivalent to 12/60. O 1/5, 3/15 O 1/5, 3/5 1/6, 3/18 O 1/10, 3/30
Lisa bought an outfit for $37.67. What is $37.67 rounded to the nearest whole number?
What is photosynthesis?​
Marjorie needs to cut 5 yards of fabric into sections that are 7 of a yard long. How many sections will she be able to cut from the fabric? OA. 12 OB. 1 OC. 35
Sorry before it didn't came
Help with answering this please !
Jessica exercises at least 45 minutes per day. Use t to represent Jessica's amount of exercise (in minutes per day).​
What are the three things in the arc box? Religion question
4. What does this line mean at the end of paragraph 6? “We invent fictions in order to live somehow the many lives we would like to lead when we barely have one
why is there more producers than TERTIARY consumers?